EMIGRATION IN RESPONSE TO RESOURCE AVAILABILITY AS A METHOD OF POPULATION REGULATION IN CRAYFISH.

Persistent Link:
http://hdl.handle.net/10150/186802
Title:
EMIGRATION IN RESPONSE TO RESOURCE AVAILABILITY AS A METHOD OF POPULATION REGULATION IN CRAYFISH.
Author:
MENKE, JOHN HOTTON.
Issue Date:
1983
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The regulatory emigration hypothesis was tested experimentally using the crayfish Orconectes causeyi Jester. Varying amounts of food and shelter were provided to crayfish in tanks with escape routes. O. causeyi rapidly adjusted its numbers in harmony with available resources through density-dependent emigration. Shelter influenced the distribution and abundance of O. causeyi most. Response to food occurred but less and took longer than the response to shelter. The small amount of variance between numbers of crayfish that emigrated during both short-term and long-term replicate tests strongly supports the regulatory emigration hypothesis.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Crayfish populations -- Environmental aspects.; Animals -- Dispersal.; Crayfish populations.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Renewable Natural Resources; Graduate College
Degree Grantor:
University of Arizona

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleEMIGRATION IN RESPONSE TO RESOURCE AVAILABILITY AS A METHOD OF POPULATION REGULATION IN CRAYFISH.en_US
dc.creatorMENKE, JOHN HOTTON.en_US
dc.contributor.authorMENKE, JOHN HOTTON.en_US
dc.date.issued1983en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe regulatory emigration hypothesis was tested experimentally using the crayfish Orconectes causeyi Jester. Varying amounts of food and shelter were provided to crayfish in tanks with escape routes. O. causeyi rapidly adjusted its numbers in harmony with available resources through density-dependent emigration. Shelter influenced the distribution and abundance of O. causeyi most. Response to food occurred but less and took longer than the response to shelter. The small amount of variance between numbers of crayfish that emigrated during both short-term and long-term replicate tests strongly supports the regulatory emigration hypothesis.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectCrayfish populations -- Environmental aspects.en_US
dc.subjectAnimals -- Dispersal.en_US
dc.subjectCrayfish populations.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.committeememberHendrickson, Johnen_US
dc.contributor.committeememberMatter, Williamen_US
dc.contributor.committeememberTash, Jerryen_US
dc.contributor.committeememberThomson, Donalden_US
dc.contributor.committeememberZiebell, Chucken_US
dc.identifier.proquest8322649en_US
dc.identifier.oclc690022897en_US
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